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John Kautz, proprietor of Ironstone Vineyards, purchased the gold specimen in 1994 for an undisclosed price; its appraised value at the time was $3.5 million. [1] Kautz had the 60 lb troy (22.4 kg) nugget etched with acid to remove most of the quartz; the resulting gold leaf specimen is 44 lbs troy (16.4 kg).
High-grade gold ore specimen from the mine Chalcopyrite-Quartz specimen from the Camp Bird mine, 600' Stope, 2100' Level. Size: 5.2 x 3.6 x 2.7 cm. Click and scroll down for an enlargement. The Camp Bird Mine is a famous and highly productive old gold mine located between Ouray and Telluride, Colorado.
The collecting area ranges from the Northern slopes of Camerons Cone to Specimen Rock on the south. Much of this area is National Forest. Like all the other Pikes Peak collecting areas, Crystal Park contains the usual smoky quartz and amazonite crystals. In addition, topaz is more abundant here than in the Gold Camp road area. Typical topaz crystal
A gold-quartz specimen from the Dos Cabezas Mountains The wilderness consists of the rugged slopes of the Dos Cabezas Mountains, with elevations ranging from 4,080 to 7,500 feet (1,200 to 2,300 m). There is a diverse terrain of steep mountain slopes, granite outcroppings and vegetated canyon floors.
Bernhardt Otto Holtermann (29 April 1838 – 29 April 1885 [1] [2]) was a successful gold miner, businessman, politician and photographer in Australia. Perhaps his greatest claim to fame is his association with the Holtermann Nugget, the largest gold specimen ever found, 59 inches (1.5 m) long, weighing 630 pounds (290 kg) and with an estimated gold content of 3,000 troy ounces (93 kg), found ...
Gold Hill in Grass Valley, California, was the site of one of the first discoveries of quartz gold [2] in California. While quartz gold was also found in other areas of Nevada County, California during the same time, it is this find near Wolf Creek that led to quartz-mining frenzy and subsequent creation of the Gold Country quartz-mining industry.
Natural electrum "wires" on quartz, historic specimen from the old Smuggler-Union Mine, Telluride, Colorado, USA The Pactolus river, from which Lydia obtained electrum for its early coinage Electrum Phoenician bowl with mythological scenes, a sphinx frieze and the representation of a king vanquishing his enemies, Cypro-Archaic I, from Idalion, 8th–7th centuries BC (Louvre, Paris) Brooch ...
Quartz reef mining is a type of gold mining in "reefs" (veins [1]) of quartz. Quartz is one of the most common minerals in the Earth's crust, and most quartz veins do not carry gold, but those that have gold are avidly hunted by prospectors. In the shallow, oxidized zones of quartz reef deposits, the gold occurs in its metallic state, and is ...
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